A line arched or enarched for dividing a field. "Escutcheons that have more than one tincture are divided by lines ... Curved and angular lines are numerous, and each has an Heraldic name expressive of its form." -Hall, 1862

Line Arched

A line arched or enarched for dividing a field. "Escutcheons that have more than one tincture are divided…